Prosecution Insights
Last updated: October 27, 2026

Rexford N Barnie, USPTO Patent Examiner

Listed by the USPTO as BARNIE, REXFORD N

Tech Center 2800 • Art Units: 2836

This examiner grants 22% of resolved cases

Analysis

BARNIE, REXFORD N is assigned to Tech Center 2800 and Art Unit 2836. Among 55 resolved cases, the allowance rate is 21.8%, while the interview lift reaches 42.0%. The data therefore gives interviews a particularly important strategic role in this limited record.

The median time to allowance is 1112 days. Robert Bosch GmbH, Huawei Technologies Co., Ltd., and Volvo Group are the listed companies. The listed firms are K&L Gates LLP - Wabtec and Womble Bond Dickinson US LLP.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

21.8%
Allow Rate
-46.2% vs TC avg
74
Total Applications
+42.0%
Interview Lift
1112
Avg Prosecution Days
Based on 55 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
25.5%
§102 Novelty
55.6%
§103 Obviousness
14.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18262353 CHARGING CIRCUIT AND METHOD FOR CHARGING AN ELECTRICAL ENERGY STORE, AND ELECTRIC VEHICLE Final Rejection Robert Bosch GmbH
18311978 POWER SYSTEM, CHARGING METHOD, AND DISCHARGING METHOD Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
18536858 ADAPTIVE FAST CHARGING OF VEHICULAR BATTERIES Non-Final OA Volvo Car Corporation
18404781 CHARGING CONTROL METHOD, AND CHARGING CONTROL APPARATUS AND BATTERY PACK PERFORMING THE SAME Non-Final OA SAMSUNG SDI CO., LTD.
18178647 VEHICLE CHARGING SYSTEM AND METHOD Final Rejection Transportation IP Holdings, LLC

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Frequently Asked Questions

What is examiner Rexford N Barnie's allowance rate?

21.8% of resolved applications examined by Rexford N Barnie were allowed (55 resolved cases), compared with 66.2% across Art Unit 2836 over the last five years.

Does an interview help with examiner Rexford N Barnie?

This examiner's interview lift is +42.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Rexford N Barnie take to allow a patent?

Applications allowed by Rexford N Barnie took 1,112 days on average from filing to allowance.

Which art unit does examiner Rexford N Barnie work in?

Rexford N Barnie examines applications in Art Unit 2836 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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